Dark Lord Day is the only day of the year to buy Three Floyds Dark Lord Russian Imperial stout. DLD is a festival where participants can meet other beer enthusiasts, sample beers from all over the world, buy Dark Lord, try Oak Aged Dark Lord Russian Imperial Stout, eat BBQ, listen to live music, and generally have a great time. (yes, i unashamedly stole this from the Three Floyds website)